Acoustic Panel are covered with Camira Cara fabric.  You can also over print a design or picture. In addition to the several standard sizes, you can design the product in a special size. The frame of the panels is a 50 mm deep wood frame. The sound deadening material is a 50 mm wool sheet, which has a M1 rating. According to EN ISO 354 standard, the material has the class A sound absorption.

https://www.camirafabrics.com/en/contract/fabrics/cara